Listen to Can't Believe It (as made famous by T-Pain feat. Lil Wayne) online. Can't Believe It (as made famous by T-Pain feat. Lil Wayne) is an English language song and is sung by Hip Hop Artists United. Can't Believe It (as made famous by T-Pain feat. Lil Wayne), from the album Massive Hip Hop, was released in the year 2008. The duration of the song is 4:42. Download English songs online from JioSaavn.